US2025273819A1PendingUtilityA1

Power storage apparatus and battery pack structure

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Assignee: TOYOTA MOTOR CO LTDPriority: Feb 22, 2024Filed: Feb 10, 2025Published: Aug 28, 2025
Est. expiryFeb 22, 2044(~17.6 yrs left)· nominal 20-yr term from priority
Inventors:Isamu Hayakawa
H01M 50/186H01M 10/0418Y02E60/10Y02P70/50H01M 2004/029H01M 50/486H01M 50/477H01M 50/204H01M 10/482H01M 4/02H01M 50/474
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Claims

Abstract

A power storage apparatus includes: a plurality of stacked metal plates; and a sealing body for sealing an interior space formed between two adjacent metal plates of the plurality of the metal plates, in which the plurality of the metal plates include a first metal plate which is a positive terminal electrode, a second metal plate which is a negative terminal electrode, and a plurality of third metal plates which are a plurality of bipolar electrodes provided between the first metal plate and the second metal plate, each of the plurality of the bipolar electrodes includes a voltage detection terminal, each of the plurality of the third metal plates includes a positive electrode formed on one surface of the third metal plate and a negative electrode formed on the other surface of the third metal plate, and a support member is provided in the interior space.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A power storage apparatus comprising:
 a plurality of stacked metal plates; and   a sealing body for sealing an interior space formed between two adjacent metal plates of the plurality of the metal plates, wherein   the plurality of the metal plates include a first metal plate which is a positive terminal electrode, a second metal plate which is a negative terminal electrode, and a plurality of third metal plates which are a plurality of bipolar electrodes provided between the first metal plate and the second metal plate,   each of the plurality of the bipolar electrodes includes a voltage detection terminal,   each of the plurality of the third metal plates includes a positive electrode formed on one surface of the third metal plate and a negative electrode formed on the other surface of the third metal plate, and   a support member is provided in the interior space.   
     
     
         2 . The power storage apparatus according to  claim 1 , wherein the support member is an insulating flat plate having durability against a bending stress. 
     
     
         3 . The power storage apparatus according to  claim 1 , wherein the support member is an insulating dot print or a resin rectangular timber provided at a center of the interior space. 
     
     
         4 . The power storage apparatus according to  claim 1 , wherein the support member is formed in a region of the third metal plate where the positive electrode and the negative electrode are not formed. 
     
     
         5 . A battery pack structure formed by stacking a plurality of the power storage apparatuses according to  claim 1 .

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